JSI Tip 9875. How can I send a pop-up message to every available computer in my domain, even if the messenger service is disabled?

Windows XP and Windows Server 2003 contains MSG.EXE, a command-line tool to send a message to a user.

When you type MSG /?, you receive:

Send a message to a user. MSG \{username | sessionname | sessionid | @filename | *\} \[/SERVER:servername\] \[/TIME:seconds\] \[/V\] \[/W\] \[message\] username Identifies the specified username. sessionname The name of the session. sessionid The ID of the session. @filename Identifies a file containing a list of usernames, sessionnames, and sessionids to send the message to. * Send message to all sessions on specified server. /SERVER:servername server to contact (default is current). /TIME:seconds Time delay to wait for receiver to acknowledge msg. /V Display information about actions being performed. /W Wait for response from user, useful with /V. message Message to send. If none specified, prompts for it or reads from stdin.

Using only standard commands, and sub-routines that use only standard commands, I have scripted SendMsg.bat to send a message to every available computer in the domain that you are logged into.

The syntax for using SendMsg.bat is:

SendMsg "Message"

Where Message is the text that you wish to send.

NOTE:SendMsg.bat uses CMPAvail.bat and ADComp.bat, which must be located in your PATH, or in the same folder as SendMsg.bat.